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<pre class="layui-code" lay-options="{preview: true, text: {preview: '普通用法'}, layout: ['preview', 'code'], tools: ['full']}">
<textarea>
<div id="demo-laypage-normal-1"></div>
<div id="demo-laypage-normal-2"></div>
<script>
layui.use(function(){
var laypage = layui.laypage;
// 普通用法
laypage.render({
elem: 'demo-laypage-normal-1',
count: 50 // 数据总数
});
laypage.render({
elem: 'demo-laypage-normal-2',
count: 100 // 数据总数
});
});
</script>
</textarea>
</pre>
<h3 id="demo-theme" class="ws-anchor ws-bold">自定义主题</h3>
<pre class="layui-code" lay-options="{preview: true, layout: ['preview', 'code'], tools: ['full']}">
<textarea>
<div id="demo-laypage-theme-1"></div>
<div id="demo-laypage-theme-2"></div>
<div id="demo-laypage-theme-3"></div>
<script>
layui.use(function(){
var laypage = layui.laypage;
// 自定义主题
laypage.render({
elem: 'demo-laypage-theme-1',
count: 100,
theme: '#1E9FFF'
});
laypage.render({
elem: 'demo-laypage-theme-2',
count: 100,
theme: '#FF5722'
});
laypage.render({
elem: 'demo-laypage-theme-3',
count: 100,
theme: '#FFB800'
});
});
</script>
</textarea>
</pre>
<h3 id="demo-text" class="ws-anchor ws-bold">自定义文本</h3>
<pre class="layui-code" lay-options="{preview: true, layout: ['preview', 'code'], tools: ['full']}">
<textarea>
<div id="demo-laypage-text"></div>
<script>
layui.use(function(){
var laypage = layui.laypage;
// 自定义文本
laypage.render({
elem: 'demo-laypage-text',
count: 100,
first: '首页',
last: '尾页',
prev: '<em>←</em>',
next: '<em>→</em>'
});
});
</script>
</textarea>
</pre>
<h3 id="demo-pn-hide" class="ws-anchor ws-bold">不显示上一页、下一页</h3>
<pre class="layui-code" lay-options="{preview: true, layout: ['preview', 'code'], tools: ['full']}">
<textarea>
<div id="demo-laypage-pn-hide"></div>
<script>
layui.use(function(){
var laypage = layui.laypage;
// 不显示上一页、下一页
laypage.render({
elem: 'demo-laypage-pn-hide',
count: 100,
prev: false,
next: false
});
});
</script>
</textarea>
</pre>
<h3 id="demo-pn-show" class="ws-anchor ws-bold">只显示上一页、下一页、当前页</h3>
<pre class="layui-code" lay-options="{preview: true, layout: ['preview', 'code'], tools: ['full']}">
<textarea>
<div id="demo-laypage-pn-show"></div>
<script>
layui.use(function(){
var laypage = layui.laypage;
var layer = layui.layer;
// 只显示上一页、下一页、当前页
laypage.render({
elem: 'demo-laypage-pn-show',
count: 50,
groups: 1,
first: false,
last: false,
layout: ['prev', 'page','next'],
jump: function(obj, first){
// 首次不执行
if(!first){
layer.msg('第 '+ obj.curr +' 页');
}
}
});
});
</script>
</textarea>
</pre>
<h3 id="demo-layout" class="ws-anchor ws-bold">自定义排版</h3>
<pre class="layui-code" lay-options="{preview: true, layout: ['preview', 'code'], tools: ['full']}">
<textarea>
<div id="demo-laypage-layout-1"></div>
<div id="demo-laypage-layout-2"></div>
<div id="demo-laypage-layout-3"></div>
<script>
layui.use(function(){
var laypage = layui.laypage;
// 自定义排版
laypage.render({
elem: 'demo-laypage-layout-1',
count: 1000,
layout: ['limit', 'prev', 'page', 'next']
});
laypage.render({
elem: 'demo-laypage-layout-2',
count: 1000,
layout: ['prev', 'next', 'page']
});
laypage.render({
elem: 'demo-laypage-layout-3',
count: 1000,
layout: ['page', 'count']
});
});
</script>
</textarea>
</pre>
<h3 id="demo-limits" class="ws-anchor ws-bold">自定义每页条数的选择项</h3>
<pre class="layui-code" lay-options="{preview: true, layout: ['preview', 'code'], tools: ['full']}">
<textarea>
<div id="demo-laypage-limits"></div>
<script>
layui.use(function(){
var laypage = layui.laypage;
// 自定义每页条数的选择项
laypage.render({
elem: 'demo-laypage-limits',
count: 1000,
limit: 100,
limits: [100, 300, 500],
layout: ['prev', 'page', 'next', 'limit']
});
});
</script>
</textarea>
</pre>
<h3 id="demo-all" class="ws-anchor ws-bold">完整显示</h3>
<pre class="layui-code" lay-options="{preview: true, layout: ['preview', 'code'], tools: ['full']}">
<textarea>
<div id="demo-laypage-all"></div>
<script>
layui.use(function(){
var laypage = layui.laypage;
// 完整显示
laypage.render({
elem: 'demo-laypage-all', // 元素 id
count: 100, // 数据总数
layout: ['count', 'prev', 'page', 'next', 'limit', 'refresh', 'skip'], // 功能布局
jump: function(obj){
console.log(obj);
}
});
});
</script>
</textarea>
</pre>
<h3 id="demo-hash" class="ws-anchor ws-bold">高级 - 开启 HASH</h3>
<pre class="layui-code" lay-options="{preview: true, layout: ['preview', 'code'], tools: ['full']}">
<textarea>
<div id="demo-laypage-hash"></div>
<script>
layui.use(function(){
var laypage = layui.laypage;
// 开启 HASH
laypage.render({
elem: 'demo-laypage-hash',
count: 500,
curr: location.hash.replace('#!curr=', ''), // 初始获取 hash 值为 curr 的当前页
hash: 'curr' // 自定义 hash 名称
});
});
</script>
</textarea>
</pre>
<h3 id="demo-data" class="ws-anchor ws-bold">高级 - 将一段已知数组分页展示</h3>
<pre class="layui-code" lay-options="{preview: true, layout: ['preview', 'code'], tools: ['full']}">
<textarea>
<div id="demo-laypage-data"></div>
<div id="demo-laypage-data-view"></div>
<script>
layui.use(function(){
var laypage = layui.laypage;
// 将一段已知数组分页展示
var data = ["北京","上海","广州","深圳","杭州","长沙","合肥","宁夏","成都","西安","南昌","上饶","沈阳","济南","厦门","福州","九江","宜春","赣州","宁波","绍兴","无锡","苏州","徐州","东莞","佛山","中山","成都","武汉","青岛","天津","重庆","南京","九江","香港","澳门","台北"]; // 测试数据
laypage.render({
elem: 'demo-laypage-data',
count: data.length,
jump: function(obj){
// 模拟渲染
document.getElementById('demo-laypage-data-view').innerHTML = function(){
var arr = [];
var thisData = data.concat().splice(obj.curr*obj.limit - obj.limit, obj.limit);
layui.each(thisData, function(index, item){
arr.push(item);
});
return arr.join('');
}();
}
});
});
</script>
</textarea>
</pre>

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<table class="layui-table">
<colgroup>
<col width="150">
<col>
<col width="100">
<col width="100">
</colgroup>
<thead>
<tr>
<th>属性名</th>
<th>描述</th>
<th>类型</th>
<th>默认值</th>
</tr>
</thead>
<tbody>
<tr>
<td>elem</td>
<td>
绑定分页容器。值可以是容器 `id` 或 DOM 对象。如:
- `elem: 'id'` 注意:这里不能加 `#`
- `elem: document.getElementById('id')`
</td>
<td>string<br>DOM</td>
<td>-</td>
</tr>
<tr>
<td>count</td>
<td>
数据总数。一般通过后端得到
</td>
<td>number</td>
<td>-</td>
</tr>
<tr>
<td>limit</td>
<td>
每页显示的条数。
</td>
<td>number</td>
<td>
`10`
</td>
</tr>
<tr>
<td>limits</td>
<td>
每页条数的选择项。 若 `layout` 参数开启了 `limit` ,则会出现每页条数的 select 选择框
</td>
<td>array</td>
<td>
`[10,…,50]`
</td>
</tr>
<tr>
<td>curr</td>
<td>
初始化当前页码。
</td>
<td>number</td>
<td>
`1`
</td>
</tr>
<tr>
<td>groups</td>
<td>
连续出现的页码数量
</td>
<td>number</td>
<td>
`5`
</td>
</tr>
<tr>
<td>prev</td>
<td>
自定义“上一页”的内容,支持传入普通文本和 HTML
</td>
<td>string</td>
<td>
`上一页`
</td>
</tr>
<tr>
<td>next</td>
<td>
自定义“下一页”的内容,用法同上。
</td>
<td>string</td>
<td>
`下一页`
</td>
</tr>
<tr>
<td>first</td>
<td>
自定义“首页”的内容,用法同上。
</td>
<td>string</td>
<td>
`1`
</td>
</tr>
<tr>
<td>last</td>
<td>
自定义“尾页”的内容,用法同上。
</td>
<td>string</td>
<td>
*自动获得*
</td>
</tr>
<tr>
<td>layout</td>
<td>
自定义分页功能区域排版。可自由排列,可选值有:
- `count` 数据总数区域
- `prev` 上一页区域
- `page` 分页区域
- `next` 下一页区
- `limit` 条目选项区域
- `refresh` 页面刷新区
- `skip` 快捷跳页区
</td>
<td>array</td>
<td>
<button class="layui-btn layui-btn-sm layui-btn-primary" lay-layer="{
title: 'layout 属性默认值',
content: '<div>layout: [\'prev\',\'page\',\'next\']</div>'
}">查看默认值</button>
</td>
</tr>
<tr>
<td>theme</td>
<td>
自定义主题。支持传入:颜色值或任意普通字符。如:
- `theme: '#c00'` 直接设置当前页按钮背景色
- `theme: 'xxx'` 会生成 `class="layui-laypage-xxx"` 的 CSS 类,以便自定义主题
</td>
<td>string</td>
<td>-</td>
</tr>
<tr>
<td>hash</td>
<td>
设置 `hash` 名称。设置该属性后,点击分页将会自动对当前 `url` 追加:`#{hash}={curr}`,从而在页面刷新时初始化当前页码。[#详细用法参考示例](#demo-hash)
</td>
<td>string</td>
<td>-</td>
</tr>
<tr>
<td colspan="4" style="text-align: center">
<div id="options.callback" class="ws-anchor" style="pointer-events: auto;">
[回调函数](#options.callback)
</div>
</td>
</tr>
<tr>
<td>
[jump](#options.jump)
</td>
<td colspan="3">
<div id="options.jump" class="ws-anchor">分页跳转后的回调函数。函数返回两个参数:</div>
- 参数 `obj` : 当前分页相关的所有选项值
- 参数 `first` : 是否首次渲染,一般用于初始加载的判断
```
laypage.render({
elem: 'id',
count: 70, // 数据总数,从后端得到
jump: function(obj, first){
console.log(obj.curr); // 得到当前页,以便向服务端请求对应页的数据。
console.log(obj.limit); // 得到每页显示的条数
// 首次不执行
if(!first){
// do something
}
}
});
```
</td>
</tr>
</tbody>
</table>

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---
title: 分页组件 laypage
toc: true
---
# 分页组件
> 分页组件 `laypage` 提供了前端的分页逻辑,使得我们可以很灵活处理不同量级的数据,从而提升渲染效率。
<h2 id="examples" lay-toc="{hot: true}" style="margin-bottom: 0;">示例</h2>
<div class="ws-detail">
{{- d.include("docs/laypage/detail/demo.md") }}
</div>
<h2 id="api" lay-toc="{}">API</h2>
| API | 描述 |
| --- | --- |
| var laypage = layui.laypage | 获得 `laypage` 模块。 |
| [laypage.render(options)](#render) | laypage 组件渲染,核心方法。 |
<h2 id="render" lay-toc="{level: 2}">渲染</h2>
`laypage.render(options);`
- 参数 `options` : 基础属性配置项。[#详见属性](#options)
<h2 id="options" lay-toc="{level: 2, hot: true}">属性</h2>
<div>
{{- d.include("docs/laypage/detail/options.md") }}
</div>
## 小贴士
laypage 组件只负责分页本身的逻辑具体的数据请求及对应的视图渲染需要另外去完成。laypage 不仅能应用在一般的异步分页上,还可直接对一段已知数据进行分页展现,如 table 组件的分页就是采用的 laypage。